Carbureting and gas-mixing apparatus.



No. 649,I9l. Patented May 87 |900.

G. ALDERSON. CAHBUBETIN AND GAS MIXING APPARATUS. Y (Application fud oct.,7, 1899.)

(No Modelf) nwmov,

GEORGE Anpassen, or PERU, Immers, Assiettes To onAnLEs vnrwnirna,

VOF SAME PLACE.

CAssuRETINe AND eas-MIXING APPaimi-ue.,u

srncrrrearron forming part of Letters Patent No. 649,191,

Application usd ombel- 7, 189e.

.To @ZZ whom' it may concern:

Be it known that I, GEORGE ALnnRsoN, of Peru, in thecounty of La Salle and State of Illinois, 'have invented certain new and useful Improvements in -Carburetin and Gras- Mixing Apparatus, of which the izollowing is a specication. Y

This invention relates to improvements in carbureting and gas-mixing apparatus, and refers more specifically to improvem ents upon an apparatus of the same character as that upon which Letters Patent were granted to me May 4, 1897, No. 581,930. Among the objects of the invention are to provide a construction which will insure a more rapid and thorough vaporization of the t oil or carbureting liquid,y and consequently a better carburizing of the air,'to provide means for morel thoroughly mixing the components and controlling the amount of air introduced or the vproportions of air and gas admittedupon each intaking impulse of the apparatus, and, in general, to simplify, cheapen, and improve the construction of 'the apparatus.

To thisend the invention consists in the matters hereinafter described, and more particularly pointed out in the appended claim, and will be readily understood from the following description, reference being had to the accompanying drawing, in which is representeda vertical axial sectional View, with cer:- tain parts shown inside elevation, of an apparatus containing my inven tion as embodied in a carbureter.

Referring to said drawing,A designates as a whole the main body of the device, shown in the present yinstance as conveniently made cylindric and provided inits upperpartwith an outlet-nipple'A, adapted to be connected with any suitable exhaust mechanism which will serve to draw vapor through the appa'iav tus by impulsesf-as,'for example, the cy`linder of a gasengine." In the construction v shown the lower endl ofk thebody A is closed I' by means of a'nint'egral low-er end'lfw'all faj'j substantially' Iiatupon its innersurfacehand provided at 'is center-with an upstanding boss a'. The 'said' end. wall is also providedl 5o externallywith an axially-arranged inlet-nip`l of the vapor, to provide fmeans for varying v "direction, veniently fed in thi.`

dated May s, 190e. seau No. 782,843. un moana ple a2, internally threaded, as indicated at a", for connection with any suitable source of oil-supply under pressure, the inlet-passage of said nipple being red cedand extended through the boss a', soasto open at theapex of the latter, as indicated at a4. .At its point of emergence through the boss the channel d* is countersunk or enlarged, as indicated at a5, to form a valve-seat, against which reststhe point of a needle-valve h. lThe needlevalve b is formed upon the lower end of a Valve-steml B, which extends vertically upward through the interior of the carburetor and out through a central opening formed l through the top wall a o f lsaid body,"b'eing A65 arranged 'to extend through suitable guiding and controlling mechanism `tobe hereinafter. ldescribed and whereby the opening of the needle-valve is controlled. .p y.

a7 designates a series of inletapertures formed through the side' Walls of the body at lintervals apart, around the circumference, of

the latter and at a slight distance above the. level of the inner surface of the lower wall, as indicated clearly in the drawing.

C designates a damperor valve-ring arranged to dt around the,` lower end of the body A'and provided with a` series of inlet-` apertures c, adapted to be bron ht into register with the inlet-apertures a! of the car- 8o bnreter-body. .v As a convenient construction said valve-ring 'is formed integrally with a' disk c', arranged to underlie the lower end of the carbureterbody and centrally apertnred to t upon the base portion as of the inlet-nipple. Obviously by rotating said valve-ringthe inlet-apertures almay be closed to any extent desired, and in order tolock said valve-ring in adjusted position the 'exte rior of the nipple a? is screw-threaded to rey9o ceive a locking-nut'QQconvenientlyprovidedl 1 whereby itfmay be manipulated. Desirably means are provided forv limiting the rotation of the valve-ring in either such' means being rshown as con-l 95 comprising asto'p'orstnd a9, mountside wall of the carbnreter-body and arranged entially-extending slot or' recess al", f ormedj, 'ln the'upper marginof the valvering. ,As roo to project ou'tthrough a circumfen;A y'

an additional convenience a portion of the upper margin of said valve-ring is graduated and an indicator a11 mounted upon the valvebdy in position to coperate with said graduto'insure a morefethcicnt actionof the air-.

jets in thus taking up the oil the inlet-apertures through both valvoshody and valvering are inclined downwardly and inwardly, sothatthe jets of air are caused to impinge upon the surface of thc oil. To next describe the means whereby the air ih us admittedis caused to operate theneedle-valve and is at the sam-e time thoroughly mixed, B' designatesa vane mounted rigidly upon the valvestem B, so as to approximately partition thelower part of the chamber of the carburetorbody from the upper part thereof, but of such diameter as to move freely within said chamber. Within said vaneare' formed a plurality of passages b', spaced at intervals apart throughout the area of the vane and of such size as to permit the ,vapor to be drawn gradually through the vane, but at the Sametime with such resistance thereon" as to lift the needle-valve against a resistance pro vided by a mechanism now to be described.

D designates an adjusting sleeve or stop threaded through the upper end wall of the carbureter-body, so as to telescope `upon the4 valve-stem, the upper end portion of said sleeve being arranged to fit closely around the stem, while the remainder of the interior` of the-sleeve is enlarged suiciently to accommodate a coiled resistance-spring d, surround'- ing the stem. That part of the vaive-stem which extends within the lower ,end of said sleeve, below the spring, is enlarged to form an annular shoulder `b2, against which the spring acts to hold the valve against its seat. A second annular shoulder b3 is formed upon the Valve-stem immediately belo'w'the end of the sleeve, said shoulder being adapted to act as a stop to limit the upward movement of the valve-stem by engagement with thelower end of the sleeve. inasmuch as the sleeve D is threaded' through the end wall of the carbureter, it will be obvious that the throw of the needle-valve may be adjusted by simply screwing the said sleeve up or dow.n,.as required," and in order to lock said sleeve in ad justed position a lock-nut D', provided with a handle d', is mounted upon the sleeve to jam against the end wallof the carbureter. Asa desirable and convenient ,means of dctcrlnining the adjustment ot' the throw ofthe needle-vnlx e the upper end of the sleeve Dis provided with. an enlarged head d2, the periphery of which is graduated', and anindex. or pointer cl3 is mounted upon the carburetor, so as to coperate with said scale.

The operation of the devceconstructed as described is substantially similar to that of the apparatus heretofore patented to me and will therefore be entirely obvious from the foregoing description. Among the-advantages due to my present construction may be mentioned the following:

In theconstruction set forth in my patent l rized was permitted to.l enter vin substantially the same manner as in the present construction; but the airinlets were arranged to pass through the bottom wall ofthe carbureter and'to terminate in bosses rising sufficiently .above the bottom of the chamber to prevent the escape of the oil therethrough. With this construction the air-jets were'directed away from the surface of the liquid, whereas in the present construction, by reason of the location of the air-inlets above the bottom of the. carburetingA chamber and their inclination downwardly toward-said bottom, the air is caused to impinge against the oland vaporize the same much more eciently. The ,in-3

-olined sides of the central boss through which the o'il is admitted are also directly in the path of the jets, which entering-the inletapertures are deflected bythesurface of the liquid, so as to sweepup along the Ainclined portions of the boss as the liquid runs 'down the same in a. thin film, thereby further carbureting the incoming air. After lea-ving the lower part 'of the carbureting-chamber. the air is drawn up through the valve-lifting,

vane Ater serving to thoroughly the numerous passages through the latrnix the vapor and ca use it to pass out through the exhaust-.passage ci' in a very uniform and highly-carbureted state.

abled to regulate the rate of flow through said apertures, so that-the air is not permitted to pass over the oil too rapidly to become carbureted to the required degree, and by this means I am enabled to'produce a vapor of the highest efficiency. It is to be noted also in this connection that the restricted openings through. the vane also serve to retard the escape of theair from the lower part of theV carbureterchamber,and consequently insure a more thorough carburizing of the saine;

I claim as my invention- A gas-mixing 'apparatus comprising a re ceptacle substantially closed except at its top, where it is provided with an outlet,.=this re 4ceptacle being provided 'in the center of its bottom with 'a depending oil-inlet nipple threaded externally Vand its side wall above the bottom of the receptacle being provided with a series of air-inlets, a valve for these inlets consisting of a disk c* abutting against the bottom of the receptacle and provided with an upstnnding flange at its edge closely By means of the damper or valve controlling the air-inlet apertures I am en.

' heretofore referred to the liquid to be Vapo- Ilo embracingthe lower endof thereceptacle and ence of two subscribing witnesses, this' 3d provided with a, series of openings adapted day of October, A. D. 1899.

to register with the air-inlets and a. clampnut on the depending inletnipple for hold- GEORGE ALDERSON' 5 ing the valve in itsadjusted positions. Witnesses: In testimony that I claim the foregoing as ADOLPH I loss',

lmy invention I affix my signature, in pres- PETER TROST; 

